Moderna, Inc. received emergency use authorization for a booster dose of the Moderna COVID-19 vaccine (mRNA-1273) for people aged 65 and older; people aged 18 to 64 who are at high risk of severe COVID-19; and people aged 18 to 64 with frequent institutional or occupational exposure to SARS-CoV-2. The booster dose is to be administered at least six months after completion of the primary series. The FDA also authorized a single booster dose of the Moderna COVID-19 vaccine for individuals who have...